Rails%203%20In%20Action

First steps
class ProjectsController < ApplicationController
end
Listing 3.13 app/controllers/projects_controller.rb
def index
end
def new
end
Running rake cucumber:ok now results in a complaint about a missing new template,
just as it did with the index action:
When I follow "New Project"
Missing template projects/new with {
:handlers=>[:erb, :builder, :sass, :scss],
:formats=>[:html],
:locale=>[:en, :en]
} in view paths "/home/rails3/ticketee/app/views"
You can create the file at app/views/projects/new.html.erb to make this step pass,
although this is a temporary solution. You come back to this file later to add content
to it. The third step should now be the failing step, given the second one is passing, so
run rake cucumber:ok to see if this is really the case:
And I fill in "Name" with "TextMate 2"
cannot fill in, no text field, text area or password field with
id, name, or label 'Name' found (Capybara::ElementNotFound)
Now Capybara is complaining about a missing "Name" field on the page it’s currently
on, the new page. You must add this field so that Capybara can fill it in. Before you do
that, however, fill out the new action in the ProjectsController so you have an object
to base the fields on. Change the new to this:
def new
@project = Project.new
end
The Project constant is going to be a class, located at app/models/project.rb, thereby
making it a model. A model is used to retrieve information from the database. Because
this model inherits from Active Record, you don’t have to set up anything extra. Run
the following command to generate your first model:
rails g model project name:string
This syntax is similar to the controller generator’s syntax except that you specified you
want a model, not a controller. The other difference is that you gave it one further
argument comprising a field name and a field type separated by a colon. When the
generator runs, it generates not only the model file but also a migration containing the
code to create this table and the specified field. You can specify as many fields as you
like after the model’s name.
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